Concentric Butterfly Valve ISO5752

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Product Description:


1. Small in size, light in weight, easy installation and maintenance.

2. Simple and compact construction, quick 90 degree on-off operation.

3. Minimized operating torque, energy saving.

4. Flow curve tending to straight line, excellent regulation performance.

5. Long service life, standing the test of tens thousands opening/closing operations.

6. BUbbles-tight sealing with no leakage ubder the pressure test.

7. Wide selection of materials, applicable to various medium.

Material List:

No.Part NameMaterial
1BodyCarbon Steel/Stainless Steel/Cast Iron/Ductile Iron/ Al-Bronze
2DiscAl-Bronze/CF8M/Ductile iron/WCB
4StemCarbon Steel/Stainless Steel314/Stainless Steel316
6O ringEPDM/PEFE/Buna/NBR/Hypalon

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Q:What is another name for a valve?
Valve comes from latin valva. There is not other name for it in engineering, but some times is referred as a cock, if the valve is used as shutoff valve, it is also known as shutoff cock. For irrigation, sometimes large gate valves are also known as gates. I can give you many names for the type of valves but I can't think of any other name that replaces valve.
Q:My boiler fill valve isnt letting water supply in boiler.?
I work on antique steam boilers and engines for a hobby and if your supply valve isn't letting feedwater into the boiler, I'm going to tell you right now that you potentially have a VERY dangerous situation on your hands. Until you get this issue resolved, I would recommend that you not steam this boiler up under any circumstances, unless you have a backup feedwater delivery system that is working correctly. Many people don't know this, but a low water condition in a boiler under steam is essentially a ticking time bomb and can result in a fatal explosion. As to what may be causing it, I would say it's possibly one of two things: 1.) The check valve has been installed backwards and the flow of water is basically pushing it shut. 2.) The check valve is installed correctly, but is frozen shut due to corrosion and scale. Either way, I would have a certified boiler inspector come out and take a look at it; he can probably tell you more than I can.
Q:foot valve replacement?
Yes, considering they have to pull all the pipe in the well to get to the foot valve which is at the bottom of the well.
Q:Damaged water valves will not close?
You don't have to go through all that crap. Get a can of PB Blaster or Deep Creep. (penetrating oils) Both oils far away better than WD-40. Spray the stem of the valves and wait,..... about 20 minutes. if they are still stiff, apply again, wait another 20. Then if its not fine and ready to go, THEN go through the hassle...
Q:Low water pressure from Orbit valve.?
Its possible the valve stem is corroded with stuff not letting it actuate properly open. Turn water off and unscrew the valve then actuate it electrically while watching for a full stroke. Make sure flow control is all the way open when inspecting valves stroke. Remember where you had it set when done or readjust. Also check the solenoid for corrosion and clean linkages. I would clean and coat with petroleum jelly. My guess is valve seat is gummed up so lube the stem and work it manually till it slides open and closed easy then test with the solenoid. Good luck!
Q:Difference between a pressure tap valve and a gate valve?
Tapping Valves
Q:2007 Nissan Quest Fuel shut off valve?
2007 does not have a shut off valve. Sounds as if some one has used a non programed key Nissan Imobilizer has detected the aftermarket non programed or key with chip embedded in the key has failed. After 4 attempts the car turns on lock mode and it is tow truck time. Gather up all the keys you have they all have to be reprogramed. And it is a good time to have two complete sets of keys and remotes money allowing of course. Only computerized lock smiths and Nissan dealerships can introduce keys. Is there a red light that looks like a car with a key lighting up when you attempt to start the car?
Q:Gummed up french horn valves?
Sounds like your oiling correctly but you need to get the dried oil out, that's the gum your feeling. One way is to have the school send it to the repair shop, its not your horn so don't spend any money on it. Another way is to flush them out with a thin valve oil. Where can you buy a quart of valve oil? Walmart and Kmart has it but not labeled as valve oil. Look for Lantern oil , the stuff used in oil lamps, it is very cheap and many of the valve oils are made of the same stuff. Take out all the crooks on the instrument and flood the valve with the lamp oil, this should flush out the gum. After you have dumped the lamp oil re-oil the way you have been. (Lamp oil is not dangerous, it burns if you hold a match to it but that is about it, you can also use charcoal lighter)
Q:Check Valve for Air Pump?
Q:What rhymes with valve?
Sorry to all those saying salve and halve (and one could add calve) -- in these words the L is silent! Thus for valve there is no PERFECT rhyme (defined as using exactly the same sounds from the vowel of the accented syllable to the end of the word). The best you can do is a NEAR rhyme in which most of the sounds match, with as few sounds changed as possible, and the 'substitutes' matching as closely as possible. These COULD include dropping the L altogether, but I'm not so sure that salve, etc. work very well Varying the vowel: delve, elve [from a scientific acronym], helve (handle of a tool such as an ax), shelve, swelve ('to swallow'), twelve revolve, solve Varying the final consonant (and possibly the vowel) The closest match would be changing /v/ to /f/, but these words, again, mostly have a silent L (half, calf, ). The only exception? The name Ralph also changing the vowel: elf, shelf (but the -v forms are better matches) a voiced /th/ (as in this NOT thin) is fairly close to the /v/ sound -- as a result mouth (the verb form) might work. (why does mouth work better than salve? Perhaps because the ow sound is closer to the al of valve than to the short-a of salve, cat, etc.) health and wealth --with a changed vowel and un-voiced /th/ is little tougher, but maybe. . .

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